Jasmine JavaScript Testing Framework Jasmine Configuration and Reporters 3

Question 1

How do you filter which specs run using the Jasmine CLI?

Accepted Answer

--filter="pattern"

Answer

The --filter flag accepts a regex string and Jasmine runs only specs whose full name matches the pattern.

Question 2

What does the helpers option in jasmine.json specify?

Accepted Answer

Glob patterns for files loaded before any spec files run

Answer

helpers are loaded after the Jasmine framework but before spec files, making them ideal for setting up custom matchers or global configuration.

Question 3

Which reporter interface method is called exactly once when the Jasmine test run begins?

Accepted Answer

jasmineStarted(result)

Answer

jasmineStarted(result) is the first reporter method called, receiving the total spec count so reporters can track progress.

Question 4

What does jasmine.getEnv().allowRespy(true) enable?

Accepted Answer

Calling spyOn on a method that is already a spy

Answer

By default Jasmine throws when you spy on an already-spied method; allowRespy(true) suppresses that error.

Question 5

Which jasmine.json option stops Jasmine from running further specs after a set number of failures?

Accepted Answer

failFast: true

Answer

failFast: true stops the run after the first failure; for a specific count, you can also use the stopSpecOnExpectationFailure option per spec.

Jasmine JavaScript Testing Framework Practice Test